Q:Why I can’t get audio on MJPEG based cameras When I using Firefox and Chrome?A: In oder to have audio feature on MJPEG based cameras when accessing via Firefox, Google Chrome, please install VLC media player first.
1.Login the camera on Push Server Mode. Click Audio, go to www.videolan.org , download the player, and install it.

2.During the installation, you must select Mozilla plugin.

3.Re-login your camera, click Audio, then you can hear the voice around the camera.